题目内容

The use of EMtree includes:

A. Search extension words to prevent missing
Browse the hyponyms of extension words
C. Find indexing preferences
D. The key words are determined by term information

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Retrieval Approach of Embase includes:

A. Quick search
B. Advanced search
C. Drug search
Disease search

The full name of EMBASE database is：

A. Emtree
B. MeSH
C. excelpta medica database
D. Medline

PMC is the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature, AND the full name of PMC is ______

To search the term only as a MeSH term in PubMed, it must be tagged using the search field ______ for MeSH Terms.